/*
 * Copyright 2023 the original author or authors.
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * https://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.openrewrite.kotlin.tree;

import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;
import org.openrewrite.Issue;
import org.openrewrite.test.RewriteTest;

import static org.openrewrite.kotlin.Assertions.kotlin;

class WhileLoopTest implements RewriteTest {

    @SuppressWarnings("ControlFlowWithEmptyBody")
    @Test
    void whileLoop() {
        rewriteRun(
          kotlin(
            """
              fun test ( ) {
                  while ( true ) { }
              }
              """
          )
        );
    }

    @Test
    void statementTerminatorForSingleLineWhileLoops() {
        rewriteRun(
          kotlin(
            """
              fun test ( ) {
                  while ( true ) test ( )
              }
              """
          )
        );
    }

    @Issue("https://github.com/openrewrite/rewrite-kotlin/issues/139")
    @ParameterizedTest
    @ValueSource(strings = {
      "-- len",
      "len --"
    })
    void unaryOp(String op) {
        rewriteRun(
          kotlin(
            """
              fun method() {
                  val len = 10
                  while (%s > 0) {
                  }
                  while (0 < %s) {
                  }
              }
              """.formatted(op, op)
          )
        );
    }

    @Issue("https://github.com/openrewrite/rewrite-kotlin/issues/561")
    @SuppressWarnings("ControlFlowWithEmptyBody")
    @Test
    void noBody() {
        rewriteRun(
          kotlin(
            """
              fun test ( ) {
                  while ( true )   ;
              }
              """
          )
        );
    }
}
